Current ~45 angle is driftable but real drift cars have 70-80 degrees of angle which would be more fun. I know there are mods but would be nice to have it in the base game.
I can't even find a working mod for this. But yeah they should add a second option for drift steering.
Looks like we need a whole drift front suspension not just steering, steering is already at the limit for most cars.
I thought Big mikes server had some custom mod but this should help you for now: https://www.beamng.com/threads/lgn-performance-pack.89372/